/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *  
 *    http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License. 
 *  
 */
package net.server;

import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.IdleStatus;
import org.apache.mina.common.IoHandler;
import org.apache.mina.common.IoHandlerAdapter;
import org.apache.mina.common.IoSession;
import org.apache.mina.common.TransportType;
import org.apache.mina.transport.socket.nio.SocketSessionConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * {@link IoHandler} implementation for echo server.
 * 
 * @author The Apache Directory Project (mina-dev@directory.apache.org)
 * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007)
 *          $,
 */
public class EchoProtocolHandler extends IoHandlerAdapter {
	private static final Logger log = LoggerFactory
			.getLogger(EchoProtocolHandler.class);

	public void sessionCreated(IoSession session) {
		if (session.getTransportType() == TransportType.SOCKET) {
			((SocketSessionConfig) session.getConfig())
					.setReceiveBufferSize(2048);
		}
		session.setIdleTime(IdleStatus.BOTH_IDLE, 60);

	}

	public void sessionIdle(IoSession session, IdleStatus status) {
		log.info("*** IDLE #" + session.getIdleCount(IdleStatus.BOTH_IDLE)
				+ " ***");
	}

	public void exceptionCaught(IoSession session, Throwable cause) {
		cause.printStackTrace();
		session.close();
	}

	public void messageReceived(IoSession session, Object message)
			throws Exception {
	
		ByteBuffer rb = (ByteBuffer) message;
		log.info("rb=" + rb.toString());
		// Write the received data back to remote peer
		ByteBuffer wb = ByteBuffer.allocate(rb.remaining());
		wb.setAutoExpand(true);
		wb.put(rb);
		wb.flip();

		log.info("wb=" + rb.toString());
		session.write(wb);
	}
}